Blaine R. Worthen <br/><br/>
Educational Evaluation: Theory and Practice 

 - USA  Charles A. Jones Publishing Company  1973 
 - 372p  23cm 
<br/><br/><label>ISBN: </label>0839600313 
<br/><br/><label>LCCN: </label>7293896 
<br/><br/><label>Dewey Class. No.: </label>370.1 W932e